Genius Mm USB Op Eco-8100 Black
-Over current protection, over voltage protection, smart power saving, quality battery, quality charging cable.
- sensor engine blue eye
- number of buttons 3 (left, right, middle button with scroll)
- resolution (dpi) 800 – 1600 rf
- battery type built-in rechargeable nimh(before first use, fully charge the - battery for 10 hours uninterrupted.)
- weight 81 g (includes receiver & rechargeable nimh)
- dimensions (w x h x d) 59.5 x 106 x 37.1 mm ( 2.34 x 4.17 x 1.46 inches)